Problem Solving Guide - Miele SMUL0 Operating Instructions Manual

Problem solving guide

Many malfunctions and faults that can occur in daily operation can be easily
remedied. Time and money will be saved because a service call will not be
needed.
The following guide may help you to find the reason for a malfunction or a fault,
and to correct it.

Risk of injury caused by rotating roller brush.
You can injure yourself on the rotating roller brush.
Switch the vacuum cleaner off before dealing with any problems. Use the On/
Off switch on the Comfort handle to do this.
Problem
The cleaning perform-
ance is poor.
Cleaning performance
is reduced.
The Electrobrush
switches itself off.
The operating noise is
changing during vacu-
uming.
32
Cause and remedy
The dust container is full.
 Empty and clean the dust container (see "Mainten-
ance").
The Electrobrush is dirty/blocked.
 Clean the Electrobrush (see "Maintenance –
Cleaning the Electrobrush" and "Removing the
roller brush from the Electrobrush").
The fine dust filter is dirty.
 Clean the fine dust filter (see "Maintenance –
Cleaning the fine dust filter").
The pre-filter is dirty.
 Clean the pre-filter (see "Maintenance – Cleaning
the pre-filter").
The Electrobrush is overloaded – this can happen on
surfaces like deep-pile carpet.
 Switch the vacuum cleaner off and switch it on
again at a reduced suction power level. Use the
On/Off switch on the Comfort handle to do this.
The floor covering detection function is activated in
the medium and highest power levels. The Electro-
brush power output is automatically set to the op-
timum level based on the type of flooring.
 The noise is not unusual – the vacuum cleaner is
functioning normally.